Robust Cross-Layer Network Optimization for Diverse QoS Requirements: Work in Progress

Published

July 6, 2011

Author(s)

Vladimir V. Marbukh

Abstract

Abstract—Conventional approach to cross-layer network optimization assumes elastic users adjusting their bandwidth requirements in response to the resource congestion prices. This assumption leads to Network Utility Maximization (NUM) framework with Lagrange multipliers associated with resource capacity constraints playing role of the congestion prices. However, often users can more naturally quantify their preferences in terms of the rate and high-level Quality of Service (QoS) requirements rather than networks level end-to-end bandwidth requirements. This paper suggests that replacing resource capacity constraints with constraints on the feasible QoS parameters may lead to cross-layer network optimization framework with elastic users adjusting their diverse QoS requirements directly in response to the QoS-sensitive prices. We illustrate the proposed framework on examples of end-to-end bandwidth allocation subject to the worst-case scenario and average end-to-end delay.

Proceedings Title

World Congress on Engineering: The 2011 International Conference of Applied and Engineering Mathematics

Conference Dates

July 6-8, 2011

Conference Location

London

Pub Type

Conferences

Keywords

cross-layer system optimization, quality of service, pricing.

Citation

Marbukh, V. (2011), Robust Cross-Layer Network Optimization for Diverse QoS Requirements: Work in Progress, World Congress on Engineering: The 2011 International Conference of Applied and Engineering Mathematics , London, -1 (Accessed December 30, 2024)